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问题 单项选择题 案例分析题

某一青年学生健康体检时，心电图示心室率65次／分，PR间期为0．26秒，QRS-T波群未见异常

应与之鉴别的情况是（）

A.交界性期前收缩

B.室性期前收缩

C.二度窦房传导阻滞

D.一度窦房传导阻滞

E.房室结双径路

答案

参考答案：E

单项选择题

下列关于UNIX操作系统的叙述，正确的是______。

A．是单用户、多任务的操作系统

B．采用星型文件系统，具有良好的安全性、保密性和可维护性

C．提供了功能强大的可编程Shell语言，简洁高效

D．全部采用汇编语言，易读易写
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单项选择题

Activity Based Costing (ABC) is an (126) technique that allows an organization to determine the actual (127) associated with each product and service produced by the organization without regard to the organizational structure. This chapter explains some of the uses and benefits of Activity Based Costing. We use IDEFO (128) modeling in conjunction with ABC to enable more effective business (129) design decisions.

In order to achieve the major goals of business process improvement, process simplification and improvement, FAA managers need to fully understand the cost, time, and quality of activities performed by employees or machines throughout an entire organization. ABC methods enable (130) to cost out measurements to business simplification and process improvement.

（126）是（）

A.computing

B.campaigning

C.programming

D.accounting
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